CN103608798A - Clustered file service - Google Patents
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- CN103608798A CN103608798A CN201280027196.2A CN201280027196A CN103608798A CN 103608798 A CN103608798 A CN 103608798A CN 201280027196 A CN201280027196 A CN 201280027196A CN 103608798 A CN103608798 A CN 103608798A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/176—Support for shared access to files; File sharing support
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/178—Techniques for file synchronisation in file systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
- G06F16/1824—Distributed file systems implemented using Network-attached Storage [NAS] architecture
- G06F16/183—Provision of network file services by network file servers, e.g. by using NFS, CIFS
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Abstract
A cluster based file service may operate on a cluster of two or more independent devices that have access to a common data storage. The file service may have a namespace definition with each device in the cluster, but may be modified by any device operating the file service. Each instance of the file service may identify and capture a command that changes the namespace structure and cause the change to be propagated to the other members of cluster. If one of the devices in the cluster does not successfully perform an update to the namespace structure, that device may be brought offline. The cluster based file service may permit adding or removing devices from the cluster while the file service is operating, and may provide a high throughput and high availability file service.
Description
Background technology
File service is used for and each client devices shared file.File service can present file to client devices by shared form, and they are wherein can the bibliographic structure of store files or a part for bibliographic structure.In some cases, can make identical file available in different sharing.
Many file service can be different users and share to define different license collection for each.Some users can have read/write license, and other users can have read-only license, and other user can not have the access right shared to this.Each subset that some file system can be shared this is applied different licenses, as each file, catalogue or file or directory group in single sharing define different licenses.
Summary of the invention
File service based on cluster can operate on the cluster of two or more autonomous devices that can access common data storage.File service can have with the per unit name space definition in this cluster, but can be by any apparatus modifications of operation this document service.Each example of file service can identify and catch the order of change name space structure and make this change be transmitted to other members of cluster.If one of each equipment in cluster does not have the renewal of successful execution to name space structure, this equipment can be by off-line.File service based on cluster can permit in operation file service adding equipment or removing device therefrom to this cluster, and high-throughput and high availability file service can be provided.
It is for the form introduction to simplify is by the concept of the selection further describing in the following detailed description that this general introduction is provided.Content of the present invention is not intended to identify key feature or the essential feature of claimed subject, is not intended to for limiting the scope of claimed subject yet.
Accompanying drawing explanation
In the accompanying drawings:
Fig. 1 is the diagram that the embodiment of the network environment with cluster file service is shown.
Fig. 2 is the functional diagram of embodiment that the concept topological structure of file service cluster is shown.
Fig. 3 is the timeline process flow diagram that the embodiment of the method operating for management cluster is shown.
Fig. 4 is the process flow diagram that the embodiment of the method for serving for operation file is shown.
Fig. 5 illustrates for upgrading the process flow diagram of embodiment of the method for slave node.
Embodiment
File service based on cluster can walk abreast and use a plurality of equipment to provide file service to a plurality of client computer.The identical copies in each the had file name space in file service supplier, and can identify and catch the change to this name space.Those changes can be transmitted to each in each member of the cluster that the service of this same file is provided.
The framework of cluster can allow the different equipment group in this cluster that some different name spaces are provided.For example, a name space can be provided by three equipment in cluster, and second place word space can be provided by four equipment, two members that can be to provide the group of this first place word space in these four equipment.In such embodiments, some equipment in cluster can provide two or more name spaces, and other equipment can only provide a name space.
Cluster can carry out operating equipment group with leader and follower arrangement.Leader is defined as the equipment of the management application in cluster.The in the situation that of file service, leader can be the equipment that starts and stop file service, adds additional cluster device or therefrom remove additional cluster device and carry out other management roles to file service.
In the equipment group of file service is provided, depend on situation, some embodiment can make each equipment take on main equipment or slave.In equipment Inspection, when to the change of name space, as when user add or the deleted file, this equipment can be taken on main equipment and upgrade name space and send this name space to other equipment (they take on slave).During the operating process of file system, any main equipment taken in each equipment or slave.Other embodiment can have for upgrading the different mechanisms of other nodes in cluster.
Name space can identify the shared resource (it is file system normally) of any type.File system can comprise catalogue or file, file or other objects.In certain embodiments, name space can be the pointer that points to the starting point in bibliographic structure.Name space can comprise various license settings or other information relevant with this name space.
In this specification, in to the whole description of accompanying drawing, identical Reference numeral represents identical element.
When element is called as " being connected " or " being coupled ", these elements can be connected directly or be coupled, or also can have one or more neutral elements.On the contrary, when element is called as, is " directly connected " or when " direct-coupling ", does not have neutral element.
This theme can be embodied as equipment, system, method and/or computer program.Therefore, this theme partly or entirely can specialize with hardware and/or software (comprising firmware, resident software, microcode, state machine, gate array etc.).In addition, this theme can adopt computing machine to use or computer-readable recording medium on the form of computer program, in medium, included the computing machine using together for instruction execution system or combined command executive system and can use or computer-readable program code.In the context of this document, computing machine can use or computer-readable medium can be can comprise, store, communicate by letter, propagate or transmission procedure for instruction execution system, device or equipment is used or combined command executive system, device or equipment are used together any medium.
Computing machine can use or computer-readable medium can be, such as, but not limited to, electricity, magnetic, optical, electrical magnetic, infrared or semiconductor system, device, equipment or propagation medium.As example, and unrestricted, computer-readable medium can comprise computer-readable storage medium and communication media.
Computer-readable storage medium comprises for any method of information such as computer-readable instruction, data structure, program module or other data of storage or volatibility and non-volatile, the removable and irremovable medium that technology realizes.Computer-readable storage medium comprises, but be not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, tape cassete, tape, disk storage or other magnetic storage apparatus, maybe can be for any other medium of storing information needed and can being accessed by instruction execution system.Note, computing machine can use or computer-readable medium can be on it, to print paper or another the suitable medium that has program, because program can be via for example the optical scanning of paper or other media being caught electronically, be compiled if necessary subsequently, explain, or process in other suitable modes, and be stored in computer memory subsequently.
Communication media embodies computer-readable instruction, data structure, program module or other data with modulated message signal such as carrier wave or other transmission mechanisms conventionally, and comprises random information transmission medium.Term " modulated message signal " refers to the signal that makes to set or change in the mode of coded message in signal its one or more features.As example and unrestricted, communication media comprises such as cable network or the direct wire medium of line connecting, and the wireless medium such as acoustics, RF, infrared and other wireless mediums.Within in above-mentioned, arbitrary combination also should be included in the scope of computer-readable medium.
While specializing in the general context of this theme at computer executable instructions, this embodiment can comprise the program module of being carried out by one or more systems, computing machine or other equipment.Generally speaking, program module comprises the routine carrying out particular task or realize particular abstract data type, program, object, assembly, data structure etc.Conventionally, the function of program module can combine as required or distribute in each embodiment.
Fig. 1 is the diagram that the embodiment 100 of cluster file service is shown.Embodiment 100 is the exemplary architecture that can be used to provide file service in the tolerant system of highly-parallel with high availability.
The diagram of Fig. 1 shows the functional module of system.In some cases, assembly can be the combination of nextport hardware component NextPort, component software or hardware and software.Some assemblies can be application layer software, and other assemblies can be operating system level assemblies.In some cases, assembly can be tight connection to the connection of another assembly, and wherein two or more assemblies operate on single hardware platform.In other cases, connection can connect by the network of span length's distance to carry out.Each embodiment can realize described function by different hardware, software and interconnect architecture.
In cluster, two or more equipment can each operation of parallel processing.In many cluster environment, each equipment can be configured to make one of these equipment can be out of order, by off-line or otherwise shut-down operation, and this service still can operate on another equipment.Such configuration can be anti-failure system, and wherein this system can be allowed the fault of one or more equipment and this service is still provided.
In addition, cluster can provide very high handling capacity to a plurality of requests of this service by process simultaneously.In such use, single cluster can provide manyfold bandwidth or the handling capacity of individual equipment.
For file service, provide each node of file service can use identical name space definition.Name space definition can define the shared content being provided.This is shared can comprise various objects, as file, catalogue, file or other objects.
To each request of file service, can fall into two classifications: make this share those requests of change and not make this share the request of change.The request that makes this request of sharing change can comprise interpolation or deleted file, change document directory structure or carry out other operations.Do not change this shared request and can comprise reading file.In certain embodiments, the write operation that file is carried out can be considered to the change to name space, and other embodiment can be by write operation as not changing this name space.
When name space has been changed in request, all nodes that provide this to share can be provided in this change.When change is propagated, other nodes can suspend before any other request is responded, until this change completes on this node.If equipment Inspection is not correctly realized to change, this equipment can be by own off-line, until this problem can be solved.
Name space can be shared by some different modes between each node.In a kind of mode, each in each operating system of equipment can have the registration table of wherein having stored each configuration setting or other information.This shared name space providing can be stored in registration table.Registration table can be operating system or other application use can be by fast and the database of easily accessing.In certain embodiments, a part for registration table can be across some nodes sharing.Being shared partly of registration table can above operate to other nodes of sharing this part of registration table to the change of registration table and by this change propagation by detecting one of each node.
In another kind of mode, name space can be stored in another database, as is stored in the primary name space in storage system (it can be cluster storage system).In such system, each node can be safeguarded the local replica of name space.Local replica can be arranged in registration table or other databases.In such embodiments, the node of taking on host node can make change be transmitted to other nodes.
Cluster can be managed by cluster management application, and this management application can be carried out on one of each clustered node.Cluster management application can be carried out various bookkeepings to cluster, as added, removing and configuration node, and on this cluster, starts and each application of management.For file service application, the node that cluster management application can identification document service can be carried out thereon, assigns leader's node, and leader's node is configured and operation file service on assigned node.
In certain embodiments, the set 125 of name space definition can reside on equipment 102.Name space definition 125 can comprise about being stored in the metadata of the file in sharing.In certain embodiments, this metadata can comprise the metadata of each file in bibliographic structure and this bibliographic structure.Name space definition 125 may be enough to some file service requests to respond, as the request of the filename in particular category.In some cases, name space definition 125 can be used to cluster storage system 142 to call with retrieving files content, to file writing information or to this, share and carry out other operations.
In certain embodiments, name space definition 125 can comprise the pointer that points to starting point shared in existing bibliographic structure.In such embodiments, name space definition 125 can comprise various metadata, as permitted maybe these other metadata of sharing of setting, access control.
In certain embodiments, name space definition 125 can reside in database, and this database can be the data storage mechanism of any type, as relational database, file, table or other mechanism.In certain embodiments, name space definition 125 can be stored in the registration table 119 that can be used as the database being used by operating system 118.
Except file service 122, equipment 102 can be carried out various other application and service 124.In many examples, cluster can be carried out many application and service, and wherein different resource set has been applied in each application or service.
Cluster can consist of some nodes.Equipment 102 can be one of these nodes, and clustered node 128 can be additional node.Clustered node 128 can operate on the hardware platform 130 of hardware platform 104 that is similar to equipment 102.The cluster client application 132 that this node of each comprised permission in clustered node 128 operates in this cluster is together with file service 134 and other services 136.Not shownly on clustered node 128 can be used for processing by file service 134 the name space definition set of file service request.
Each in clustered node can be connected to each other by cluster network 126.In certain embodiments, cluster network can be the LAN (Local Area Network) that the network 146 that operates therein with client devices 148 separates.In such embodiments, cluster network 146 can have the private high network that each clustered node can communicate with one another therein.In other embodiments, cluster network 126 can be wide area network, the Internet or other networks.In such embodiments, cluster network 126 can be optimized or can not optimize for each clustered node and communicates with one another.
Clustered node can be communicated by letter with storage system 138, and storage system 138 can have the hardware platform 140 that cluster storage system 142 can operate thereon.Storage system 138 can be to provide storage area network or the other system of the storage of each access that can be in clustered node.
At clustered node, just when operation file is served, this is shared and can be stored in storage system 138.Each node of operation this document service can communicate by letter to retrieve file, catalogue or other objects being associated with provided name space with storage system 138.In such configuration, the addressable identical file of each node, this and the documentary a plurality of copies of tool form contrast.
Cluster can arrange load balancer 144.Load balancer 144 can be distributed to any in each node of carrying out specific file service by the request of importing into.Load balancer can operate by the load balance scheme of any type.In a kind of load balance scheme, load balancer 144 can be distributed to each node successively by request.Such scheme is called as recycle scheme.Other schemes can be analyzed bandwidth or the response time of each node and as criterion, distribute new request by these data.
In normal running, the file service of carrying out on cluster can make to share and can use each client devices 148.Client devices 148 can be the computer equipment that can access any type of sharing.Cluster can provide redundancy, one of them node can be due to fault, maintenance or other reasons off-line, and another node can continue operation.Cluster also can provide the handling capacity of raising, because many nodes can carry out Parallel Service to request.Such use can provide the higher handling capacity that can carry out alone than individual node.
Fig. 2 is the diagram of embodiment 200 that the functional diagram of cluster file service is shown.Embodiment 200 is the exemplary architecture that can be used to provide across cluster a plurality of file service.
The functional module of the system that illustrates of Fig. 2.In some cases, assembly can be the combination of nextport hardware component NextPort, component software or hardware and software.Some assemblies can be application layer software, and other assemblies can be operating system level assemblies.In some cases, assembly can be tight connection to the connection of another assembly, and wherein two or more assemblies operate on single hardware platform.In other cases, connection can connect by the network of span length's distance to carry out.Each embodiment can realize described function by different hardware, software and interconnect architecture.
Cluster 202 is shown to have five computing nodes 204,206,208,210 and 212.Each in these computing nodes can be to carry out the computing machine of the many processing in each processing of applying.In cluster, can there be other nodes, as management node, memory node, load balance node, agent node or additional calculations node.
Show three different file service.File service 214 can operate on node 204,206 and 208.File service 216 can operate on node 206,208,210 and 212, and file service 218 can operate on node 210 and 212.
Each file service can be taken on the separately example in their respective nodes of file service.For example, node 208 can operation file two examples of service.In such embodiments, each example can provide different shared and each examples on different group nodes, to operate.
In certain embodiments, individual node can operate can provide two or more shared single instances.In such embodiments, node 208 is the single instance of executable file service for example, and it can respond the shared request being associated with file service 216 and file service 218.
In the example of embodiment 200, some nodes can differently load with other nodes.For example, node 204 can only have a file service 214, and node 206 can have two file service 214 and 216.Such situation can occur during by initial configuration in file service or other application.During configuring, meet and expect that the number of nodes requiring can be determined and these nodes can be selected.Can select node by various criterions, comprise based on minimum use, Random assignment or other selection criterions and select node.
In certain embodiments, node can be not identical.Some nodes can have than the more processing power of other nodes, the network bandwidth or other abilities, and more examples that therefore can supporting document service.
The non-equal loading of node can be used as to be added or removes the result of node and occur after service execution.Some embodiment can identification service loading increase, and can be to this service interpolation new node so that additional request be responded.Similarly, the loading that some embodiment can identification service has reduced and can remove some nodes from service.After some different services are added or removed node, non-equilibrium or non-equal situation can occur, the situation as shown in embodiment 200.
Each be connected to cluster storage 220 in each node.Cluster storage 220 can comprise by the file that any node visit of this shared file service is provided, catalogue and sundry item in sharing.In many examples, cluster storage 220 can be can have for to storage area network or other storage systems of capacity, speed or other performance parameters that each node of file service responds are provided.
In certain embodiments, some nodes can be directly connected to cluster storage 220, and other nodes connect only indirectly.In such embodiments, the node indirectly connecting can visit cluster storage 220 by using cluster network and direct-connected node to communicate.
Some clusters can have load balancer 222.Load balancer 222 can be by new file system request is distributed to each node.Load balancer 222 can have the various algorithms of distribution process load between each computing node.A kind of simple algorithm is request to be distributed to successively to the round-robin algorithm of each node.Meticulousr algorithm can check that each node is to determine a least-loaded for which node, and this algorithm can will newly ask to distribute to this node.
Cluster 202 can comprise the cluster management application 230 that can carry out various management roles on cluster.Cluster management application 230 can operate on the one or more nodes in each node of cluster.In certain embodiments, dedicated management node can be carried out cluster management application 230.
Each in computing node 202,204,206,208 and 210 can be accessed each the Cluster Database 232 of name space that can comprise in each file service.Cluster Database 232 can be realized by some different modes.
In a kind of mode, Cluster Database 232 can comprise the primary copy of name space definition.Primary copy can be synchronously or is copied to each in the node of the file service that provides corresponding.
In another way, Cluster Database 232 can comprise name space definition equally, and provides each node of file service can be linked to Cluster Database.In such embodiments, node can have this locality making in this node and calls and be directed to being redirected or other links of Cluster Database.Such embodiment can not safeguard the local replica of Cluster Database at each Nodes.
Fig. 3 is the timeline diagram that the embodiment 300 of the method operating for management cluster is shown.Embodiment 300 is simplification examples of the method that can be carried out by cluster manager dual system 302, leader's node 304 and follower node 306.The operation of cluster manager dual system 302 is illustrated in left hand column, and the operation of leader's node 304 is illustrated in middle column, and the operation of follower node 306 is illustrated in right-hand column.
Other embodiment can complete similar functions with different sequences, additional or step still less and different name or terms.In certain embodiments, each operation or operational set can be with other operations to synchronize or asynchronous system is carried out concurrently.Selected step is selected for the form to simplify illustrates certain operations principle herein.
At frame 308, can identify leader's node.Leader's node can be the configuration identical with other nodes in cluster, but can manage specific service.
At frame 310, file structure that can will be shared from cluster storaging mark, and at name space corresponding to frame 312 definables.At frame 314, name space can be stored in Cluster Database.
At frame 316, can determine the quantity of the node that can carry out this document service, and at frame 318, can send file service configuration to leader node.
At frame 320, leader's node 304 can receive this configuration and start layoutprocedure.
At frame 322, leader's node 304 can identification name word space and can from Cluster Database, be retrieved this name space at frame 324.At frame 326, can start file service with this name space.Now, leader's node 304 can be to provide unique node of this document service.
At frame 328, can process each follower node.In many examples, can have a plurality of follower nodes, each in them can be used this name space that this document service is provided.At frame 330, leader's node 304 can send configuration order to follower node 306, and can use follower nodal information to upgrade load balancer at frame 332.
At frame 334, follower node 306 can receive configuration order.At frame 336, follower node 306 can identification name word space, at frame 338, from the definition of Cluster Database retrieval name space, and can use this name space to start this document service at frame 340.
The processing of frame 328 to 340 can be carried out when each new follower node is added to this document service.
At frame 342, node can be identified as forbidding or be removed from file service.At the renewable load balancer of frame 344, so that load balancer can stop sending new request to the node that is about to forbidding.At frame 346, leader's node 304 can send to follower node 306 by forbidding notice, at frame 348 follower nodes 306, can receive this notice and stop this document service at frame 350.
Fig. 4 is the process flow diagram that the embodiment 400 of the method for serving for operation file is shown.Embodiment 400 is simplification examples of the method carried out of any node that can be served by execute file, and is the example of the operation that can carry out when name space being made to change.
Other embodiment can complete similar functions with different sequences, additional or step still less and different name or terms.In certain embodiments, each operation or operational set can be with other operations to synchronize or asynchronous system is carried out concurrently.Selected step is selected for the form to simplify illustrates certain operations principle herein.
Other embodiment can be used MS master-slave operation to realize such renewal in file service.In such embodiments, the data that any node of execute file service can be when this node detects request and can cause the change to name space or in Cluster Database by be modified a certain other conditions time become host node.Consistent Cluster Database is used by all nodes, and it is consistent making each file service request, and regardless of which node, this request is served.
MS master-slave embodiment can operate by the information detecting in the variable Cluster Database of a request, and this node can be arranged to oneself host node and make other nodes take on slave node, until change is transmitted to each node.
In such embodiments, any node of operation file service can declare it oneself is host node at any time.In such embodiments, each node can be processed the request of any type.Such embodiment only permits a node at any given time becomes host node.
At frame 402, file service can start operation.
At frame 404, can receive file service request.At frame 406, if processing renewal, at frame 408 these nodes, can before continuing, wait for until upgrade end.The circulation of frame 408 can be guaranteed can not process request with expired or inconsistent database.The example of the process of carrying out at reproducting periods shown in the embodiment 500 that can present after a while at this instructions.
At frame 406, if do not upgraded just processed, and at frame 410, this request does not cause the change to name space, at frame 412, can process this document services request.
At frame 412, if request has caused change really, at frame 416, can start renewal process.At frame 418, can make change to name space, and can be by this change propagation to other nodes at frame 420.This change can be stored in the local in local storage or high-speed cache.
Fig. 5 illustrates for upgrading the process flow diagram of embodiment 500 of the method for slave.Embodiment 500 is simplification examples of the method that can be carried out by any node of taking on slave at main equipment reproducting periods.In many examples, during the All Time of carrying out in file service, any equipment can be taken on subordinate or main equipment.
Other embodiment can complete similar functions with different sequences, additional or step still less and different name or terms.In certain embodiments, each operation or operational set can be with other operations to synchronize or asynchronous system is carried out concurrently.Selected step is selected for the form to simplify illustrates certain operations principle herein.
At frame 502, can receive update notification.At frame 504, can stop processing new file service request.
At frame 506, can make the trial of upgrading name space definition or other information.At frame 508, if be updated successfully, can Recovery processing request at frame 514 slave nodes.
At frame 508, if upgrade unsuccessfully, at frame 510, can make node off-line and can transmit alarm to cluster manager dual system or leader's node at frame 512.
The operation of embodiment 500 shows when slave node is attempted upgrading and running into fault, and this node can make own off-line.When this node off-line, can take corrective action and make all the other nodes continue operation simultaneously.
Object to foregoing description of the present invention for diagram and description presents.It is not intended to exhaustive theme or this theme is limited to disclosed precise forms, and other are revised and modification is all possible in view of above-mentioned instruction.Select and describe embodiment and explain best principle of the present invention and practical application thereof, making thus others skilled in the art in various embodiment and the various modification that is suitable for conceived special-purpose, utilize best the present invention.Appended claims is intended to be interpreted as comprising other alternative embodiments except the scope that limit by prior art.
Claims (15)
1. a system, comprising:
A plurality of equipment, each in described equipment have can be in described a plurality of equipment each on the file service that operates;
Comprise the data storage of file, each access in described a plurality of equipment of described data stored energy;
The tissue of described file is defined as to a shared name space definition, and described name space definition is stored in the Cluster Database of each access that can be in described a plurality of equipment, and described sharing becomes and can be accessed by client devices;
Described file service sign is updated to the name space definition through upgrading to the change of described name space definition and on described Cluster Database by described name space definition, and described file service is also upgraded the local cache version of described name space definition.
2. the system as claimed in claim 1, is characterized in that, also comprises:
Load balancer, described load balancer receives from the request of described client devices and for each in described request determines that one of described a plurality of equipment process request.
3. the system as claimed in claim 1, is characterized in that, also comprises:
Leader's application of carrying out on the first equipment in described a plurality of equipment, described leader's application identities new equipment also adds described new equipment in described a plurality of equipment to.
4. system as claimed in claim 3, is characterized in that, described leader's application also identifies the first equipment and described the first equipment is removed from described a plurality of equipment.
5. the system as claimed in claim 1, is characterized in that, also comprises:
More than second equipment as the subset of described a plurality of equipment; And
The second tissue of at least one subset of described file is defined as to the second shared second place word space definition, the definition of described second place word space is stored in the Cluster Database of each access that can be in described more than second equipment, and described second shares and become and can be accessed by client devices.
6. system as claimed in claim 5, is characterized in that, described more than second equipment is identical with described a plurality of equipment.
7. the system as claimed in claim 1, is characterized in that, described file service also:
When the local cache version of name space definition described in trial is the first renewal of the equipment, fault detected and described the first equipment is forbidden to described file service.
8. system as claimed in claim 7, is characterized in that, described file service also:
Retry upgrades the local cache version of described name space definition and add described the first equipment to described a plurality of equipment when described being updated successfully.
9. a method, comprising:
For each in a plurality of file server equipment, install and execute file service and described file service is connected to the file storage that comprises file;
The definition of definition name space, described name space definition defines the shared of at least some files in described file;
The definition of described name space is stored in Cluster Database to each access that described Cluster Database can be in described a plurality of file server equipment;
On the first file server equipment as one of described a plurality of file server equipment, start described file service, described file service is used described name space definition;
Described file service sign is to the change of described name space definition and in described Cluster Database, upgrade described name space definition;
Use described name space definition starting the second file server equipment; And
By described the first file server and described the second file server, concurrently file request is served.
10. method as claimed in claim 9, also comprises:
The definition of described name space is copied to the first local cache on described the first file server equipment and the second local cache on described the second file server equipment.
11. methods as claimed in claim 10, is characterized in that, also comprise:
First change of described the first file server equipment Inspection to described name space, upgrades described the first local cache with described first, and upgrades described Cluster Database with described first;
Described the second file server equipment upgrades described the second local cache with described first.
12. methods as claimed in claim 11, is characterized in that, also comprise:
Second change of described the second file server equipment Inspection to described name space, upgrades described the second local cache with described second, and upgrades described Cluster Database with described second;
Described the first file server equipment upgrades described the first local cache with described second.
13. methods as claimed in claim 12, is characterized in that, also comprise:
When described the first file server equipment upgrades described the first local cache with described second, problem detected and forbid that described the first file server serves described file request.
14. methods as claimed in claim 13, is characterized in that, also comprise:
Use described name space definition starting the 3rd file server equipment; And
By described the first file server, described the second file server and described the 3rd file server, concurrently file request is served.
15. methods as claimed in claim 14, is characterized in that, also comprise:
Forbid that described the first file server served and operate concurrently by described the second file server to described file request and described the 3rd file server is served described file request.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US13/153,416 | 2011-06-04 | ||
US13/153,416 US9652469B2 (en) | 2011-06-04 | 2011-06-04 | Clustered file service |
PCT/US2012/039879 WO2012170234A2 (en) | 2011-06-04 | 2012-05-29 | Clustered file service |
Publications (2)
Publication Number | Publication Date |
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CN103608798A true CN103608798A (en) | 2014-02-26 |
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US20120311003A1 (en) | 2012-12-06 |
US9652469B2 (en) | 2017-05-16 |
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CN103608798B (en) | 2016-11-16 |
WO2012170234A3 (en) | 2013-02-07 |
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